Yum Brands' (YUM) shares continued to plunge a day after fast-food workers in New York City protested for higher wages. McDonald's (MCD) and Burger King (BKW) are also feeling the effects of the daylong strike. The strike for a higher minimum wage hit the weakened Yum hard. Yum shares fell 2.8% to 65.83, below its 50-day line in the stock market today. McDonald's fell 0.2% to 100.46. Burger King shares fell 0.3% to 18.72. Yum is expecting profit